Gamma-C₂S Synthesis from Fly Ash of Fluidize-Bed Boiler for CO₂ Capture

• Authors: S. Na , S. Kang , S. Lee , M. Song
• Languages of publication: EN

Abstracts

EN

This paper describes the CO₂ capture performance of cement blended paste incorporating gamma-dicalcium silicate (gamma-C₂S) made with industrial by-products, by taking into consideration of effect of CaCO₃, fly ash replacement ratio under the sintering process. X-ray diffraction method was conducted in order to quantitatively investigate the gamma-C₂S content. CO₂ capture performance of mortar sample incorporating gamma-C₂S was investigated by means of compressive strength test using accelerated carbonation chamber. The experimental results revealed that the kind of CaCO₃ would affect the affect the formation of gamma-C₂S after the sintering with respect to the XRD-Rietveld analysis. Moreover, it is confirmed that compressive strength of mortar sample incorporating gamma-C₂S has the same tendency at curing age of 3, 7 and 28days. Blended mortar sample made with 10 wt.% replacement ratio of gamma-C₂S had high compressive strength value compared to normal mortar sample, therefore, incorporating gamma-C₂S had a positive effect on the compressive strength after accelerated carbonation. Finally, the waste foundry sand powder may be alternative to produce gamma-C₂S.

Keywords

EN

81.05.-t

Discipline

• 81.05.-t: Specific materials: fabrication, treatment, testing, and analysis(for superconducting materials, see 74.70.-b, and 74.72.-h; for magnetic materials, see 75.50.-y; for optical materials, see 42.70.-a; for dielectric materials, see 77.84.-s; for disperse systems and complex fluids, see 82.70.-y; see also 82.75.-z Molecular sieves, zeolites, clathrates, and other complex solids; for materials properties, see sections 60 and 70)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 4
• Pages: 1282-1285

Dates

published

2015-04

Contributors

author

S. Na

• Research Center of Advanced Convergence Processing on Materials, Kangwon National University, Samcheok, Republic of Korea

author

S. Kang

• Dept. of Advanced Materials Engineering, Kangwon National University, Samcheok, Republic of Korea

author

S. Lee

• Dept. of Advanced Materials Engineering, Kangwon National University, Samcheok, Republic of Korea

author

M. Song

• Research Center of Advanced Convergence Processing on Materials, Kangwon National University, Samcheok, Republic of Korea

References

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• [6] S.H. Lee, S.M. Kang, S.H. Na, M.S. Song, Y.I. Woo, The Proceedings of 41th Cement Symposium, 91 (2014)
• [7] L. Kriskova, Y. Pontikes, L. Pandelaers, Ö. Cizer, P.T. Jones, K. Van Balen, B. Blanpain, Metallurgical and Materials Transactions B, 1 (2013)

Identifiers

DOI

10.12693/APhysPolA.127.1282